in the previous session, the dow had hit its highest level in years. >>> the u.s. government plans to file a civil lawsuit against the ratings agency standard & poor's. the suit accuses the firm of giving high ratings to risky mortgage bond and led to the 2008 financial crisis. s&p says the suit is without merit. >>> medical marijuana has been legal in california since 1996. but now some cities are banning the dispensaries. a ruling will soon determine how far state law can go to protect their right to do business. the state supreme court will hear arguments today on whether local governments can ban them. right now about 200 cities and counties ban medical marijuana dispensaries, three dozen right here in the bay area. >>> a warning to men who take supplements. a new study in the journal of the american medical association finds men who take vitamin c are twice as likely to develop kidney stones. a second study finds calcium supplements increase the risk of heart disease in men. researchers in both studies say better to eat foods rich in vitamin c and calcium and